. >>> president obama says he brought the prayers of the nation to the pete of newtown, connecticut, a town shattered by friday's shooting and elementary school. 26 people were killed, including 20 children, before the gunman killed himself. speaking at the service, the president noted this was the fourth time he's had to console a community during his time in office. and he demanded changes in the way the u.s. deals with gun violence. >> we will be told that the causes of such violence are complex. and that is true. no single law, no set of laws can eliminate evil from the world or prevent every senseless act of violence in our society. but that can't be an excuse for ip action. surely we can do better than this. >> the president says he will meet with a group of law enforcement parents and teachers in an effort to prevent future tragedies. several democratic lawmakers are now calling for a new push on tougher u.s. gun laws, including a ban on military-style assault weapons. >>> we'll take a short break. still to come, why china's new leaders see a future where economic growth isn't